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Monoclonal Antibodies

Guselkumab for Pediatric Ulcerative Colitis (QUASAR Jr Trial)

Phase 3
Recruiting
Research Sponsored by Janssen Research & Development, LLC
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Documented diagnosis of ulcerative colitis (UC) with a biopsy report supporting the diagnosis available in the source documents
Moderately to severely active UC defined by specific Mayo scores and endoscopy subscores as determined by central review
Must not have
UC limited to the rectum only or less than 20 centimeters of the colon
Presence of a stoma
Timeline
Screening 3 weeks
Treatment Varies
Follow Up from week 12 to week 56
Awards & highlights
No Placebo-Only Group
Pivotal Trial

Summary

This trial is testing guselkumab, a medication that reduces inflammation, in children with severe ulcerative colitis who have already shown improvement with earlier treatment. It works by blocking a protein to reduce immune system-related swelling and irritation. Guselkumab has shown benefit in treating inflammatory conditions, with reports of substantial improvement in patients.

Who is the study for?
This trial is for children and teenagers with moderately to severely active ulcerative colitis, a type of inflammatory bowel disease. Participants must have shown some response to earlier treatment phases to qualify.
What is being tested?
The study tests the effectiveness of Guselkumab, a medication, in young patients with ulcerative colitis. It compares Guselkumab against a placebo (a substance with no therapeutic effect) over time.
What are the potential side effects?
Guselkumab may cause side effects like infections, allergic reactions, headaches, stomach pain, and injection site reactions. The severity can vary from person to person.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I have a confirmed diagnosis of ulcerative colitis with biopsy proof.
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My ulcerative colitis is moderate to severe, confirmed by specific tests.
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I weigh at least 10 kilograms.

Exclusion Criteria

You may be eligible for the trial if you check “No” for criteria below:
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My ulcerative colitis affects only my rectum or less than 20cm of my colon.
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I have a stoma.
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I have severe inflammation in my colon or have Crohn's Disease.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~from week 12 to week 56
This trial's timeline: 3 weeks for screening, Varies for treatment, and from week 12 to week 56 for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Percentage of Participants with Clinical Remission at Week 56
Secondary study objectives
European Union: Percentage of Participants With Endoscopic Healing at Week 56
European Union: Percentage of Participants with Endoscopic Healing at Week 12
Number of Participants with Incidence of Anti-guselkumab Antibodies
+18 more

Awards & Highlights

No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.
Pivotal Trial
The final step before approval, pivotal trials feature drugs that have already shown basic safety & efficacy.

Trial Design

5Treatment groups
Experimental Treatment
Group I: Open-label Maintenance Phase: Guselkumab SCExperimental Treatment1 Intervention
Week 12 non-responders will not be randomized and will enter an open-label maintenance phase to receive guselkumab SC dosing regimen based on their body weight up to Week 56.
Group II: Open-label Induction Phase: Guselkumab Subcutaneously (SC)Experimental Treatment1 Intervention
Participants will receive a guselkumab dose SC based on their BW during the 12-week open-label induction phase.
Group III: Open-label Induction Phase: Guselkumab Intravenously (IV)Experimental Treatment1 Intervention
Participants will receive a guselkumab dose IV based on their body weight (BW) during the 12-week open-label induction phase.
Group IV: Double-blind Maintenance Phase: Guselkumab Dose Regimen 2Experimental Treatment1 Intervention
At the end of the induction phase, Week 12 responders will be randomized into the double-blind maintenance phase to receive guselkumab dose regimen 2 SC based on their BW up to Week 56.
Group V: Double-blind Maintenance Phase: Guselkumab Dose Regimen 1Experimental Treatment1 Intervention
At the end of the induction phase, Week 12 responders will be randomized into the double-blind maintenance phase to receive guselkumab dose regimen 1 SC based on their BW up to Week 56.

Research Highlights

Information in this section is not a recommendation. We encourage patients to speak with their healthcare team when evaluating any treatment decision.
Mechanism Of Action
Side Effect Profile
Prior Approvals
Other Research
The most common treatments for Ulcerative Colitis (UC) include biologic therapies, 5-aminosalicylates (5-ASA), and corticosteroids. Biologic therapies, such as Guselkumab, work by inhibiting specific components of the immune system. Guselkumab targets Interleukin-23 (IL-23), a cytokine involved in inflammatory processes, thereby reducing inflammation and helping to maintain remission in UC patients. Anti-TNF agents like infliximab and adalimumab block tumor necrosis factor-alpha (TNF-α), another key cytokine in inflammation. 5-ASA drugs, such as mesalamine, act locally in the colon to reduce inflammation. Understanding these mechanisms is crucial for UC patients as it helps tailor treatment plans to effectively manage symptoms and maintain long-term remission.

Find a Location

Who is running the clinical trial?

Janssen Research & Development, LLCLead Sponsor
1,008 Previous Clinical Trials
6,402,783 Total Patients Enrolled
3 Trials studying Ulcerative Colitis
1,626 Patients Enrolled for Ulcerative Colitis
Janssen Research & Development, LLC Clinical TrialStudy DirectorJanssen Research & Development, LLC
773 Previous Clinical Trials
3,980,810 Total Patients Enrolled
3 Trials studying Ulcerative Colitis
1,626 Patients Enrolled for Ulcerative Colitis
~80 spots leftby May 2028